<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Bootstrap Form</title>
    <link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.css"/>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-12 col-lg-8" style="border: 1px solid #f00;">.col-xs-12 .col-md-8</div>
        <div class="col-md-6 col-lg-4" style="border: 1px solid #ff0;">.col-xs-6 .col-md-4</div>
    </div>
</div>
</body>
</html>
